EASY
Earn 100

If the nine-digit number 87605x31y is divisible by 72, then the value of 2x-3y is:

50% studentsanswered this correctly

Important Questions on Number Systems

MEDIUM
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
The least number, which is to be added to the greatest number of 4 digits so that the sum may be divisible by 345, is _____.
MEDIUM
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
If 59 is added to a square of a number, the result is 900. What is the number?
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
If 14 of third-part of number is 5, then the number is:
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
Find the unit place digit in (82)102+(183)103
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems

Twice the difference between two numbers is equal to their sum. If one number is 15, Find the other number.

1. 15
2. 10
3. 5
4. 20 

EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
Find the number that is different from other options in the given list of numbers.
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
The sum of two digits of a number is 13. If 9 is subtracted from the number, the digits are interchanged. What is the number?
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems

Find such number, so that one fourth of the number is 8 more than 5:

EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems

The sum of three consecutive numbers is 126. Find the highest number-

1. 41
2. 42
3. 43
4. 44

EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems

1 USD = Rs. 67.89. A money changer adds a margin of Rs. 1.11. What will be the cost of 150 USD ? 

1. Rs. 10,183
2. Rs. 10,350
3. Rs. 10,330
4. Rs. 10,450

EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
1800 chocolates were distributed among the students of a class. Each student got twice as many chocolates as the number of students in the class. Calculate the number of students in the class.
MEDIUM
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
A thrice of the square of a natural number decreased by 4 times the number is equal to 50 more than the number. Find the number.
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
The sum of four consecutive odd numbers is 328. Find the largest number.
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
Which of the following numbers is perfectly divisible by 4?
MEDIUM
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
Which of the following numbers is divisible by 9? 
 
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
The sum of two numbers is 9. The sum of their reciprocals is 12. Find one of the numbers is : 
MEDIUM
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
A number M is divisible by 25. If (M+5) (M+1) is divided by 25, then what will be the remainder?
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
The difference of the cubes of two consecutive numbers is 127. What are the numbers?
EASY
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems

How many times does the number 3 occur in unit's place for numbers ranging from 1 to 100?

1. 20
2. 11
3. 10
4. 19

MEDIUM
Numerical and Mental Ability>Arithmetic>Number Systems>Basics of Number Systems
If a quantity is divided in the ratio 3:5, the larger part is 75. Find the quantity.